2) Consider the following set of infinite planes with surface charge densities of identical magnitudes but alternating in polarities (o = ±10-2C/m²); with small aligned holes and separated by I

em. At a distance.of 5 cm above the stack, an alpha particle (helium nucleus)is pushed toward the small hole at the top of the stack with a small velocity (e.g., l'cm/s)in alignment with the holes. See drawing on a following page. (25 pts) a) Draw the electric field direction in regions 1-5. b) What acceleration will the alpha particle undergo in each region? What is its change in velocity in each region? d) What is its final velocity when it exits the stack at the bottom?